Analysis on the Economic Differences of China's Four Major Economic Regions:Decomposition Analysis Based on Theil Index

In recent years,with the spring of the central region and the acceleration of the development strategy of the western region,China has formed four major economical regions,which include eastern developing region,western exploiting region,central springing region and northeast vigorously developing region.The difference between the four economic regions is significant.This study analyzes the economic differences of the four regions by using the biodegradable nature of the Theil index.It is considered that the differences can not be ignored,government should take positive measures to reduce economic disparities,and strive to reduce economic disparities.